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Product Overview
The Bently Nevada 990-04-70-02-05 990 Vibration Transmitter is a reliable and compact monitoring device designed to simplify machinery vibration measurement. It integrates with Bently Nevada 3300 XL Proximity Probe systems and provides a standard 4–20 mA output proportional to vibration levels. Built for industrial environments, this transmitter enables continuous condition monitoring and supports API 670 compliance for critical machinery protection. Its rugged design ensures stable operation under harsh temperature and environmental conditions.
Key Features
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Direct integration with 3300 XL Proximity Probes
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4–20 mA output for easy DCS/PLC interface
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Supports radial vibration, shaft position, and thrust position measurements
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Wide operating temperature range (-35 °C to +85 °C)
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DIN-rail or panel mounting options
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API 670 compliance for industry-standard machine protection
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Compact and durable transmitter housing
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Simplifies vibration monitoring without a full rack-based system
Technical Specifications
| Item | Specification |
|---|---|
| Model Number | 990-04-70-02-05 |
| Series | Bently Nevada 990 Vibration Transmitter |
| Input | Bently Nevada 3300 XL Proximity Probe system |
| Output Signal | 4–20 mA proportional to vibration |
| Measurement Type | Radial vibration, shaft position, or thrust position |
| Power Supply | 18–36 VDC |
| Frequency Response | DC to 10 kHz |
| Sensitivity | Configured per API 670 standard |
| Operating Temperature | -35 °C to +85 °C |
| Storage Temperature | -51 °C to +100 °C |
| Dimensions | 100.1 x 73.9 x 53.3 mm |
| Weight | 0.43 kg |
| Mounting | DIN-rail or panel-mounted |
| Compliance | API 670, CE, CSA, ATEX (varies by model) |
Industry Applications
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Power generation (turbines, compressors, pumps)
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Oil & gas machinery protection
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Petrochemical plants
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Manufacturing facilities
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Rotating equipment monitoring
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Condition-based maintenance systems
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Industrial automation and control systems
Advantages
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Cost-effective alternative to rack-based monitoring systems
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Provides reliable API 670 compliant vibration data
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Easy integration with existing DCS/PLC systems
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Reduces downtime by enabling predictive maintenance
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Compact and durable design for long-term performance
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the Bently Nevada 990-04-70-02-05?
It measures vibration and transmits a proportional 4–20 mA signal for monitoring and protection.
Q2: Which probes are compatible with this transmitter?
It is designed to work with Bently Nevada 3300 XL Proximity Probes.
Q3: Does this transmitter comply with API 670 standards?
Yes, it is configured to meet API 670 vibration monitoring requirements.
Q4: Can the output be connected directly to a DCS or PLC?
Yes, the 4–20 mA output is designed for seamless integration with DCS/PLC systems.
Q5: What types of measurements can it perform?
It supports radial vibration, shaft position, and thrust position measurements.
Q6: What is the operating temperature range?
It operates reliably between -35 °C and +85 °C.
Q7: How is the unit mounted?
It supports both DIN-rail and panel mounting options.
Q8: Is this transmitter suitable for hazardous environments?
Yes, specific models meet CSA and ATEX requirements for hazardous areas.
Q9: What is the typical weight of the transmitter?
Approximately 0.43 kg.
Q10: Why choose this over a full rack-based monitoring system?
It offers a simpler, cost-effective, and compact solution for essential vibration monitoring.
Related Bently Nevada Models
| Model Number | Description |
|---|---|
| 990-04-50-02-05 | 990 Vibration Transmitter |
| 990-04-60-02-05 | 990 Vibration Transmitter |
| 330104-00-16-10-11-00 | 3300 XL 8 mm Proximity Probe |
| 330104-00-18-10-02-05 | 3300 XL 8 mm Proximity Probe |
| 3500/42M 176449-02 | Proximitor/Seismic Monitor Module |
| 3500/50 141056-01 | Tachometer Module |
Popular Bently Nevada Modules
| Model Number | Description |
|---|---|
| 3500/22M 288055-01 | Transient Data Interface (TDI) Module |
| 3500/42M 176449-02 | Proximitor/Seismic Monitor |
| 3500/32M 149986-02 | Relay Module |
| 330104-00-18-10-02-05 | 3300 XL 8 mm Proximity Probe |
| 330130-045-01-05 | 3300 XL Standard Extension Cable |
